Fabrication and characterization of mussel-inspired layer-by-layer assembled CL-20-based energetic films via micro-jet printing  

作　　者：Chun-yan Li Sheng Kong Dong-jie Liao Chong-wei An Bao-yun Ye Jing-yu Wang 

机构地区：[1]School of Environment and Safety Engineering,North University of China,Taiyuan,030051,Shanxi,China [2]Shanxi Engineering Technology Research Center for Ultrafine Powder,North University of China,Taiyuan,030051,Shanxi,China [3]Taiyuan Institute of Technology,Taiyuan,030008,Shanxi,China

出　　处：《Defence Technology（防务技术）》2022年第10期1748-1759,共12页Defence Technology

摘　　要：Three-dimensional(3D)micro-jet printing is a droplet deposition technique based on liquid-phase materials.To improve the deposition density and performance of energetic films with micro/nanoscale on an energetic chip,polydopamine(PDA)was utilized as a linker bridge to induce the in-situ self-assembly of CL-20-based energetic film via 3D micro-jet printing.The self-assembly was extensively characterized by confocal laser scanning microscopy(CLSM),SEM,power-XRD,XPS,and DSC.The performance of the self-assembled film was verified by the mechanical properties and detonation properties,and a possible self-assembly mechanism in the layer-by-layer micro-jet printing process was proposed.The results indicated PDA-induced self-assembly enhanced the physical entanglement between the binders and energetic crystal,reduced the porosity from 15.87%to 11.28%,and improved the elastic modulus and the detonation performance of the CL-20-based energetic film.This work proposes a novel and promising energetic film design and fabrication strategy to enhance the interaction between the energetic composite layers in the micro-jet printing process.

关 键 词：CL-20-Based energetic film Micro-jet printing Polydopamine Self-assembly 

分 类 号：TJ530.3[兵器科学与技术—军事化学与烟火技术]